Valve.



F. LEADBEATER.

VALVE.

APPLICATION FILED JAN.8, 1912 uumumm Wbtwwoeo FREDEBICKLEADBEATER; or DETROIT, MICHIGAN.

VALVE.

Specification of Letters Patent.

Patented'July 2,1912.

Application filed January 8, 1912. Serial. No. 669,910.

To all whom it may concern: 1

Be it known that I, FREDERICK LEAD- BEAT-ER, citizen of the United States, residing at Detroit, county of lVayne, State of Michito the accompanying drawings, which form a partiof this specification.

My invention relates to an improvement in valves, shownin the accompanying draw ings and more particularly set forth in the following specification and claims.

My invention is more especially designed as an improvement over United States Pat- "entgranted to me on the 3rd day of May, 191' No. 956,811, one of the objects of the prpent invention being to provide an inexpensive valve simple in its construction but effective in its operation and formed of a less number of parts than that described in the patent referred to.

One feature of my invention is the elimination of the usual stuffing box aroundthe valve stem, a steam tight joint being secured by providing the valve stem with a disk adapted to be drawn to a seat formed in the wall of the bonnet the disk providing an extended surface along the stem so constructed and arranged that it may be forced into intimate relation therewith.

Another feature of the invention consists in providing an adjustable nut. mounted on the stem adapted to regulate the tension of a spring for maintaining the disk. upon its scan-the construction being such that it anay be adjusted without removing any of the parts.

Other advantages and improvements will hereafter appear.

In the drawings accompanying this speciiication Z-Flgtl1 l is a central sectional view through the valve, with parts broken away and in elevation. Fig. 2, is a side ele vation of a disk sleeved on the valve stem.

Referring now to the letters of reference placed upon the draw1ngs:A denotes the body of a valve; B its seat; C thevalve bon-.

net having the usual scre'vv-threaded connec tion with the valve body.

I) indicates the valve stem,'and D'l'ahan die for operating the valvb stern.

, E denotes a valve, and E a valve vdisk formed of suitable material.

I F is a traveling nut having a screw-threaded engagement with the lower end of the valve st'enrD, it being free to reciprocate on the stem but held against rotation by the guides c pro ecting from the inner wall of i the bonnet C.

E is a bolt connecting the valve with the nut F. Y

D is a flange projecting from the valve stem having an upstanding annular rim (1.

G is an annular, disk preferably formedis formed with a flat or horizontal surface adapted to bear against the annular seatc depending from the inner wall of the bonnet.

The disk G is formed with a cone-shaped portiong providing an extended bearing surface along the valve stem :against the outer face of, which the inwardly; projecting flange portion 0? of the bonnet bears to force the disk into sealing contact with the valve stem.

H is a spring sleeved on the valve stem and housed within the recess provided for The upper. wall of the disk Gr near its outer peripheryits reception in the upper part of the I bonnet.

I is an adjustable But having a screw-.

the threads preferably running in the opposite dircction to those engaging the traveling nut. j

J is a set screw carried by the nut adapted to bear against the stem to secure the nut against accidental displacement when adjusted.

Having indicated the several parts by reference letters-the construction and operation of the valve will be readily understood.

=By operating'the handle D in the usual manner, the valve E may be raised, or forced to its seat- B through the action-ofthe traveling n-ut F; the passage through thefiports A and A being thus controlled. ny adjusting the nut I. the'tension of vthe spring- H-may be regulated and the disk shapedjup per. Wall of the disk to' force it toward the stem, a spring housed Within tension of the spring. v

annular seat to receive the disk carried by .servesto force the cone-shaped portion'ot --valvestem thus providing I By forming the flange, D with an upstandin'grib' d the joint between the disk held upon its seat 0. The spring H co-ac'tmg. With the nut I and the flange portion 0 the disk G into sealing contact with the v against leakage of thegvalve around the ste and flange is broken tofurther assist in insuring a tight joint. 1

' Having thus described my invention, What I claim is 1.' In a valve, a body portion provided with. a valve seat, a stem for actuating the valve, a'flange integral with the stern, a disk carried by said flange having a cone-shaped upper wall taperingto'ward the stem, a bo'nnet'secured to the body portion through which the stem projects having an annular seat to receive the disk and With a projecting flange adapted'to bear against the conethe bonnet and sleeved upon the stem to force the flange to it sse'at, and an adjustable nut engaging the stem to regulate the 2, Ina valve, a body portion provided with a valve seat, a 'valve stem having two independently -screw-threaded portions, a flange integral with the stem, a packing disk carried by said flange having a coneshaped upper Wall taperlng toward the stem, a bonnet secured to thebodyportion through which the stem projects having an the flange of the stem, a screw-threaded traveling nut adapted to reciprocate upon the stern guidesintegral with the body'porupon the stemto force the disk to-its seat;

and an adjustable nut mounted upon the stem adapted to spring. v

3. In a valve, a body portion provided with a valve seat, a valve stemhaving two" independently screw-threaded portions, a;

regulate the tension of the flange integralwith the stem with an annual lar 'rib on its upperface, a'disk carricdby said flange recessed to receive the rib and .formed with a coi'ie-shap'ed upper [wall taperlng toward the. stem, abonnet secured.

to the body port-ionthrough which. the stem projects having an annular ,seat to receive the disk and provided with a flange adapted to bear against the cone-shaped'wall oither disk to crowd it into. co'ntact'with the stem,

a screwthreaded traveling nut adapt-edito be reciprocated on the stem by rotating the latter, guides integral with the body ortion to secure the nut against rotation Withthe stem. a valve connectedto thetravelingnut,

a spring housed Within the' bonnet and sleeved upon the stem totorce the disk to itsv seat, and an adjustable nut engaging the stem to regulate the tension of the spring.

In 'testiinonywhereof,I sign this speciflcation in' the presence of two Witnesses.

- FREDERICK LEADEEAT R. \Vitnesses :f v

f [GRACE E. .VVYNKooP, SAMUEL E. THOMAS. 

